The Computational Geometry Algorithms Library
Google's software suite for combinatorial optimization
Multi-language suite for high-performance solvers of equations
Computational geometry and spatial indexing on the sphere
High performance ordinary differential equation (ODE)
Set of numeric libraries for the Go programming language
Arbitrary-precision CRC calculator and algorithm finder
statistical tests & psuedo- random number generators (RNGs, PRNGs)
fast C++ library for linear algebra & scientific computing
For exploring cellular automata like Conway's Game of Life.
Numerical and Symbolic Math Tool
fast C++ library for GPU linear algebra & scientific computing
A Portable General-Purpose Computer Algebra System
Social Network Analysis and Visualization software
NETGEN is an automatic 3d tetrahedral mesh generator
Mixed Integer Linear Programming (MILP) solver.
Sampling exactly from the normal and exponential distributions
Radial-velocity & transits analysis tool for exoplanets
Makes magic squares.